Home / 4,259.31-6,390.02-4,188.68

Finding the Fourth Proportional to 4,259.31, 6,390.02 and 4,188.68

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Solution

The fourth proportional to 4,259.31, 6,390.02 and 4,188.68 is: 6,284.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,259.31 : 6,390.02 = 4,188.68 : x
  2. Step 2: Convert to fraction form
    4,259.31/6,390.02 = 4,188.68/x
  3. Step 3: Cross multiply
    4,259.31x = 6,390.02 × 4,188.68
  4. Step 4: Simplify right side
    4,259.31x = 26,765,733.49
  5. Step 5: Solve for x
    x = 26,765,733.49/4,259.31
  6. Step 6: Final answer
    x = 6,284.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.